2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Phylum Cnidaria Lub internal epithelium los yog gastrodermis gastrodermis Lub gastrodermis yog cov txheej sab hauv ntawm cov hlwb uas ua haujlwm ua cov txheej txheem ntawm cov kab noj hniav ntawm Cnidarians. Lub sij hawm no kuj siv rau cov analogous sab hauv epithelial txheej ntawm Ctenophores. Nws tau raug pom tias gastrodermis yog nyob rau ntawm qhov chaw thaum ntxov ntawm kev ntxhov siab thaum tshav kub kub tshwm sim hauv corals. https://en.wikipedia.org › wiki › Gastrodermis
Gastrodermis - Wikipedia
is cais tawm ntawm cov epidermis sab nraud los ntawm txheej nruab nrab, mesoglea. Mesoglea yog gelatinous, noncellular connective ntaub so ntswg txheej. Sab hauv gastrodermis kab cov kab noj hniav thiab koom nrog hauv kev zom thiab nqus (Hyman, 1940).
Mesoglea nyob qhov twg?
Mesoglea yog hais txog cov ntaub so ntswg pom hauv cnidarians zoo li coral lossis jellyfish uas ua haujlwm raws li lub cev pob txha hydrostatic. Nws muaj feem xyuam nrog tab sis txawv ntawm mesohyl, uas feem ntau yog hais txog cov ntaub so ntswg pom hauv daim txhuam cev.
Mesoglea yog dab tsi thiab nws nyob qhov twg?
Hint: Mesoglea yog ib qho translucent, jelly-zoo li, tsis muaj sia nyob. Nws pom muaj nyob rau hauv cov tsiaj txhu diploblastic (uas muaj ob txheej tiag tiag) xws li Cnidarians thiab Sponges. Mesoglea tam sim no nruab nrab ntawm ob txheej ntawm cov tsiaj txhu diploblastic.
Mesoglea hauv Hydra yog dab tsi?
Lub mesoglea ntawm Hydra pab ob leeg ua pob txha thiab ua substratum . rau cellmigration. Cov haujlwm no tau ua tiav hauv Hydra pseudoligactis los ntawm cov txheej txheem ntawm cov fibers uas khiav raws lub cev kem, sib npaug rau lub qhov ncauj-aboral axis, thiab perpendicular mus rau qhov ncauj-aboral axis.
YPuas Hydra yog polyp lossis medusa?
Hydra muaj nyob rau hauv ob daim ntawv: Polyp thiab Medusa. Cov ntaub ntawv no yog nyob ntawm cov khoom noj khoom haus ntawm qhov chaw nyob. Medusa yog tus neeg laus thiab kev sib deev daim ntawv thaum Polyp yog menyuam yaus thiab asexual daim ntawv. Nyob rau hauv lub neej hnyav thiab kev tshaib kev nqhis, hydra reproduces kev sib deev.
Pom zoo:
Qhov khoom nyob rau pem hauv ntej ntawm lub lens diverging nyob qhov twg?
Teb: Dav hlau daim iav Dav Hlau Daim iav Rau lub teeb rays tawm lub dav hlau daim iav, lub lub kaum sab xis ntawm kev xav sib npaug ntawm lub kaum sab xis ntawm qhov xwm txheej. … Daim duab tsim los ntawm daim iav dav hlau yog ib txwm virtual (lub ntsiab lus tias lub teeb rays tsis yog los ntawm daim duab), upright, thiab ntawm tib lub duab thiab loj npaum li cov khoom nws yog reflecting.
Ntawm qhov capillaries pom nyob rau hauv lub cev nyob qhov twg?
Nruam: Cov capillaries no tsis muaj perforations thiab cia tsuas yog me me molecules dhau mus. Lawv tam sim no hauv nqaij, tawv nqaij, rog, thiab paj hlwb. Fenestrated: Cov capillaries no muaj cov pores me me uas tso cai rau cov molecules me los ntawm thiab nyob hauv cov hnyuv, ob lub raum, thiab cov qog endocrine.
Qhov teeb meem grey thiab dawb nyob rau hauv lub hlwb nyob qhov twg?
Cerebral cortex - Txheej txheej ntawm lub hlwb, lub paj hlwb cortex, muaj cov kab ntawm grey teeb meem neurons, nrog cov teeb meem dawb nyob hauv qab. Qhov chaw no yog qhov tseem ceeb rau ntau qhov kev kawm siab dua, suav nrog kev mloog, kev nco, thiab kev xav.
Cov pa phem nyob hauv lub cev nyob qhov twg?
thaj tsam palmar encompassing lub xibtes, lub digital / phalangeal cheeb tsam encompassing tus ntiv tes. tus ntiv tes xoo yog hu ua pollex. Pollux lub cev yog dab tsi? tus ntiv tes xoo yog hu ua pollux. Castor thiab Pollux nyob qhov twg?
Nyob rau hauv lub cev ntawm tus txiv neej aqueduct ntawm sylvius tshwm sim nyob rau hauv?
Lub ventricles muaj plaub qhov khoob, cov kua dej puv hauv lub hlwb. … Nws txuas nrog lub paj hlwb aqueduct lossis aqueduct ntawm Sylvius hauv qhov nruab nrab ntawm lub hlwbrau plaub lub ventricle hauv pons thiab medulla. Lub aqueduct ntawm Sylvius nyob qhov twg?
